| mix(verb, reduce, thin, weaken) |
| contaminate(verb, thin, spoil, corrupt) |
| doctor up(verb, expression, thin, weaken) |
| impoverish(verb, decline, reduce, fail) |
| lace(verb, reduce, thin, weaken) |
| pollute(verb, thin, spoil, corrupt) |
| abridge(verb, decline, reduce, ease) |
| clip(verb, decline, reduce, ease) |
| cook(verb, reduce, thin, weaken) |
| cut back(verb, expression, phrasal verb, decline) |
| denature(thin, spoil, corrupt, degrade) |
| diet(verb, reduce, diminish, lower) |
| drain(verb, decline, reduce, ease) |
| dwindle(verb, decline, reduce, fail) |
| ease(verb, calm, decline, reduce) |
| falsify(verb, ruin, thin, spoil) |
| impair(verb, decline, reduce, ruin) |
| lower(verb, decline, reduce, fail) |
| plant(verb, reduce, thin, weaken) |
| roll back(verb, expression, decline, reduce) |